Improvement in washing-machines



2 Sheets-Sheet 2.

W. A. DUNCAN.

WASHING-MACHINE. No.175,950. Patented Aprilll, 1876.

WITNESSES INVENTOR a d5 My 7% was N. PETERS, PHDTD-LITHOGRAPHERWASHINGTON. D c.

UNITED STATES PATENT OFFICE.

WILLIAM A. DUNCAN, on SYRACUSE, NEW YORK.

IMPROVEMENT IN WASHING-MACHINES.

Specification forming part of Letters Patent No. 175,950, dated April11, 1876, application filed February 19, 1876.

To all whom it may concern Be it known that 1, WILLIAM A. DUNCAN, ofSyracuse, in the county of Onondaga and State of New York, have inventeda new and valuable Improvement in Washing-Machines; and I do herebydeclare that the following is a full, clear, and exact description ofthe construction and operation of the same reference being bad to theannexed drawings, making a part of this specification, and to theletters and figures of reference marked thereon.

Figure 1 of the drawings is a representation of a front view of mywashingmachine, and Fig.2 is a vertical sectional detail View thereof.Fig. 3 is an end view of the same, and Fig. 4 is a detail View.

This invention has relation to that class of washing-machines which aredesigned for being clamped to a common tub, and which are constructedwith rollers between which the fabrics are passed for the purpose ofcleansing them.

The nature of my invention consists in journalin g the ends of the twolower roller shafts in rock ing plates, in combination with a largeupper roller which is held down by means of springs, whereby a morethorough rolling, rubbing, and squeezing action on the fabrics isobtained, as will be hereinafter explained.

The frame of the machine is composed of two uprights, A A, united byhorizontal bars A A', as shown in Fig. 1 of the annexed drawin gs. Bdesignates a large roller, which I prefer to corrugat-e as shown in Fig.4. The shaft b is received in slots 4, and on one end is a crank, B, bywhich roller B is turned. This roller is held down by means of springs SS, which are secured to the bar A and which press on blocks G applied tothe ends of shaft 11. The large roller is thus allowed to rise andaccommodate itself to the varying thicknesses of articles passed belowit. (3 O are twin rollers, which are, preferably, corrugated, and whichhave shafts c 0, whose bearin gs are in rockers J.

Fig. 3 shows the rockers loosely applied in double dovetail recesses11., made in the uprights A A. These rockers oscillate upon angles i andallow the rollers C (l to accommodate themselves to the fabrics passedbetween them and the roller B-that isto say, when one of the rollers Ois depressed the opposite roller will be raised and press the fabricforcibly against the large roller B.

Instead of sustaining the rockers J upon the knife-edge bearings 2',(shown in Fig. 3,) teats j may be formed on the rockers and grooves imade in the shoulders formed inside of the standards A, as illustratedin Fig. 4. This will allow a free rocking motion of the bearers J, andin some cases will be preferable to the bearings i.

What I claim as new, and desire to secure by Letters Patent, is-

The lower rollers O (J, journaled in the rocking plates J, incombination with the large upper roller B, which is held down by meansof springs S S, as described.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

WILLIAM A. DUNCAN.

Witnesses:

HORACE H. WALPOLE, H. F. Dow.

